Pneumatic stacker.



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PPPPPPPPP STACKEH.

(Application filed Apr. 18, 1896.)

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Patented may l5, leo. w. N. SPRINGER. PNEUMATIC STACKEB.

(Application filed Apr. 18, 1896.)

5 Sheets-Shut 2 No Model.)

No. 649,492. Patented May 15,1900.

w. N. SPRINGER.

PNEUMATICI STACKER.

(Application led Apr. 16, 1896.)

5 Sheets-Sheat 3.

(No Model.)

No. 649,492. k Patented May l5, |900.

w. N. SPRINGER.

PNEUMATIC STACKER.

(Application filed Apr; 16, 1896-1 5 Sheets-Sheet 4.

(No Model.)

vid W No. 649,492. Patented May I5, |900. W. N. SPRINGER.

PNEUMATIG STACKER.

(Application led Apr. 16, 1896.) (No Model.) 5 Sheets-Shcet 5.

STATES PATENT trice.

IVILLIAM N. SPRINGER, OF PEORIA, ILLINOIS, ASSIGNOR TO JOIIN I3.BARTI'IOLOMEV, OF SAME PLACE.

PN EU IVIATIC STACKER.

SPECIFICATION forming part of Letters Patent No. 649,492, dated May 15,1900.

Application iilecl April 16, 1896. Serial No. 587,833. (No model.)

T all whom t rml/y concern:

Be it known that I, WILLIAM N. SPRING ER, a citizen of the UnitedStates, residing at Peoria, in the county of Peoria and State ofIllinois, have invented certain new and useful Improvements in PneumaticStackers; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to Which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

Figure 1 is a side elevation showing a portion of a threshing andseparating mechanism and also my improved straw-stacking devices. Fig. 2is a vertical cross-section on the line .r ir, Fig. 1. Fig. 3 is ahorizontal Section on the line y y, Fig. 2. Fig. fl is a verticalsection on the line .a s, Fig. 2. Fig. 5 is a sectional view on the line5 5 of Fig. 1. Fig. 6 is a similar vienr on the line 6 6 of Fig. 1. Fig.7 is a sectional view taken on a line near the inner end of thedischarge-duct- Fig. 8 is a sectional view on the line 8 S of Fig. 1.Fig. 9 isa longitudinal sectional view through the vertical ductconnecting the fanchamber with the discharge-tube. Fig. 10 is a detailview of the connection between the adjusting threaded rod and the partsacting therewith for varying the elevation of the stacker-duct. Fig. 11is an elevation of the rear or inner curved section of the deliveryduct.Fig. 12 is a sectional view of a portion of the guiding devices for therear portion of the section M of the delivery-duct. Fig. 13 is a detailperspective view of the chait and dust deector and means for supportingthe same. Fig. 14 is a longitudinal section through the outer portion ofthe stacker spout or trunk and the inner portion ofthe deflectorhoodthereon.

In the drawings, A indicates a 'portion of the casing of a separatingmechanism at the rear end. The thresher parts and the separating devicesproper may be of any suitable sort. As shown, the straw is nallydelivered from the table ll ready for withdrawal from the machine.

At 3 is situated the winnowing shoe and fan.

In the rear end ot' the casing there is constructed a hopper-likereceptacle which receives the straw from the table B, this receptaclehaving the rear end wall a, the curved top a', the side Walls a2 and as,and also interior sloping or inclined walls a4, a5, and a". Preferablythat portion of the rear Wall indicated by a7 is hinged at a8, so thatit can be swung outward more or less as desired and for purposes to bedescribed.

The fan is indicated as a Whole by C. It is mounted in a casing C',which is situated at the side and outside of the separator-casing A. Thefan-casing is constructed with an inner plate c, a peripheral wall c andan outer plate cadapted to b e fastened securely, and a removable outerplate c3. The plates c c2 and the peripheral wall c' are fastenedtogether by the bolts c4, which are also utilized to secure them to theframework. The detachable plate cS is utilized to support the fan. Thelatter is mounted on a shaft C2, which is held in a bearing at O3, castwith the said plate. A second bearing is provided at()4 by a bracket C,which is bolted in place, as shown in Fig. 1. Between the bearings C3and C4 is situated the driving-belt Wheel D. The shaft O2 projectsthrough the bearing C3 far enough to carry the fan. The latter comprisesthe hub part c5 and the wings c, the hub having a disk-like plate c7with ribs cs, to which the wings are riveted.

The fan is not arranged centrally in the chamber O6, but eccentrically,its axis being considerably above and behind the center or axial line ofthe fan-chamber.

The fan is provided with two eyes or en-I to the ordinary fan-eye, butthat at E being i at the bottom of the fan-chamber. The purpose is todeliver to the fan the straw from the separating-table and the chaii,dust, dac., from the winnowing-shoe in two independent masses.

G is aout-off shield or partition of the shape shown in Figs. 2, 3, and4E. It has the lower horizontal part g, the curved vertical part g',

and the upper inclined part g2. The parts g g are connected to thefan-casing on a line adjacent to and around the upper eye E. They extendacross the machine to the opposite wall of the separatorchamber. Theupper part g2 of this shield or partition also extends across to theopposite wall and has its forward and upper edge as close as possiblelto the table or floor below the straw-carrier .rectly to the upperfan-eye E.

The straw which isr delivered from the carrier B drops behind the shieldor deflector G to the bottom of the receptacle above described. Fromthis receptacle it is taken in through the eye or aperture E atthebottom of the fan-casing. To insure the advance of the straw to thecasing, I prefer to employ positively-acting mechanism. I have shown anendless carrier I-I, mounted upon rollers h h', one in close proximityto the aperture E and the other near the opposite wall of the casing.rlhis conveyer may be an ordinary canvas carrier with cleats orchain-belt with attachments or other suitable device. It is driven by agearing at H', actuated by the shaft h2 and belt-wheel h3.

There will be more or less tendency for the air tov be drawn in throughthe eye E; but owing to the peculiarities of the present constructionthere will be a reduced draft, partly 4o Abecause of the fact that theair-currents from the winnowing e fan are mostly delivered through theupper eye E and partly because of the fact that the constant advance ofstraw will tend to keep the eye E more or less closed. To compensate forthis, the positively-acting carrier is employed,which insures acontinual advance of the straw into the lower part of the fan-chamber.The currents of air are powerfully propelled upward by the fan, andthese currents, together with the fan-plates, acting positively as anejector, will cause the straw to. pass continuously upward through theinner side of the casing and the duct at I. If at any time it isnecessary to still further lower within the receptacle the pressure ofthe air from the winnowing-fan, this can be done by dropping theabove-described doorlike section a7 of the rear wall and supporting iteither by hooks or hangers at a, which permit it to be adjusted asdesired. By low- Vering this part a7 to the fullest extent access thesaid shield or deflector is in the embodiment of the invention hereinillustrated connected to and supported by supporting-bars g5, which arefitted to guides gs, formed on the side walls a2 a3 of the aforesaidcasing at the rear of the thresher. The forward ends of the guide orsupporting bars g5 are connected directly with the said shield, whilebraces g7 are interposed between said bars and shield near the rear endof the bars.

The uptake-duct I is not mounted stationarily, as has been customary inmachines of this class, but rotates with the upper or delivery part ofthe duct and is mounted and supported as follows: The cross-girthsA5 andthe frame are extended out some distance beyond the separator-casing,and upon the extended partsfis placed a table-ring A, these parts thusforming a centrally-open frame. This frame is strengthened by downwardlyand inwardly inclined braces A7. The duct I is fitted in the tube C7,which terminates the delivery part of the fan-chamber and arranged torest on the same. Its upper end is in the framework above described andis held in place by means of a series of rollers J, which arc mounted onbearings attached to the framework. The deliveryportion of the duct isformed in sections. The inner section isa short curved pipe K. At itslower end it is rigidly secured by rivets or otherwise to the upper endof the'duct I, preferably by means of a fianged ring L, interposedbetween them and secured to both. This ring is shown in Figs. l, 2, 4,and 9 and is formed with geared teeth. Horizontal reciprocation can beimparted to it in the usual manner and to the devices connected with it.The ring constitutes a table-like carrier both for the duct, theadjustable parts, and the adjusting devices which actuate them. Thedelivery-duct proper consists of the inner section M and the outersection M. ally joined, so that the outer one can slide longitudinallyalong the inner one tolengthen or shorten the total duct. Near the innerend of the inner section M there is a ring N.

These are telescopic IOO IIO

It carries an upwardly-projecting arm N. To

this is fastened a guide-iron O, preferably T- shaped in sections.

l? is a ring at the inner end of the section M. To it there is secured arod 19, which extends upward and forward, as shown, and is attached atits upper outer end to the aforesaid guide-iron O. Q Q are rodsextending also from the ring P to higher points, and at their upp'erends they are connected by a cross-bar q, to which is connected or withwhich is formed the swinging nut Q'.

R is astay and truss rod which is connected to the cross-rod q andextends forward and downward to a suitable point of attachment to theguide-iron O.

S S are standards which rise from the rotary support above described,and S S are bracerods which extend forward and downward from the upperends of the standards S S.

At t there is a pivoted bearing in which there is mounted a screw-shaftT. The latter passes through the nut Q and is provided with a hand-wheelQ2, by which it can be rotated in such a way as to draw the nut Qdownward and inward, and thereby elevate the outer end of the parts MM', or, on the 1 other hand, it can be so turned as to let the end movefarther out and depress the said parts M IWI. The flexible connection ofthe part M with the hood K can be provided by an ordinary hinged jointor by means of the device which I have shown. The latter consists ofcurved guides U, rigidly secured to the rotary base, and rollers V,mounted on stud-shafts, secured to the rings N and P and litted in thesaid curved guides U. The curvature of the guides corresponds to that ofthe hood K, and the parts M M can swing vertically at their outer endsunder the control of the guides and the rollers at V.4

The longitudinal adjustment for telescopic movement of the section M/ onthe section M is effected as folows: The angle guide-bar O eX- tendsoutward to a point beyond the inner end of the section M. At its outerendit is provided with a bracket O,which at its lower end carriesrollers oand at its upper end is connected to the above-mentionedstay-rod R. The upper section Mf is provided with a guide-bar W, whichis preferably a light angle-iron I-shaped in cross-sections. This at itsinner end carries a bracket V, which latter has a roller w, that liesunder the angle-guide O, and rollers w, which lie above the last saidguide. It will be seen that the section M' is thus firmly held by meansof a truss-frame formed of the parts N, O, and R and at the same time isfree lomove out and in because of the antifriction devices which connecttogether the two guide-irons O and W.

X is a chain-wheel mounted on a shaft which is provided with a crank,this being at the inner end of the section M, and X' is a chain-wheel atthe outer end of the guidebar O.

Y is a chain passing around these wheels, and at y it is secured to thebracket WV. W'hen the shaft and wheel at X are turned in one direction,the draft of the chain forces the section M outward, the rollers at 0and w turning freely and relieving the chain Y from strain, and, viceversa, when the wheel at X is turned in the opposite direction the pointvw' is moved rearwardly and the section M is drawn inward.

The hood or delivery-section at Z is adapted to rotate axially on thetelescopic section h is a flange on the part M', and z' e" are rollerscarried by the section Z and lying inside of and bearing against theilange or ring. By means of ropes Z, extending down to within reach fromthe ground, the mouthpiece Z can be rocked to the right or left, asdesired.

IVhat I claim isl. In a straw-stackin g mechanism, the combination withthe separator, and the winnowing mechanism, of the discharge-fan, theguideway or duct for the chaff and dust from the winnower to the fan,and a chamber or passage for the straw having an entrance to thefan-chambervbelow the entrance for the chaff and dust, substantially asset forth.

2. In astraw-stacking mechanism, the combination with the separator andthe winnowing device, of the uptake-duct, the fan, the fan-casing havingtwo eyes or inlet-apertures, one for the chaff and dust from thewinnower and one for the straw from the separator, the partition, shieldor deliector interposed between the path of the air-currents from thewinnower and the path of the straw and adapted to guide the chaff anddust to one of said entrances to the fan, and means for guiding thestraw from the separator to the other entrance to the fan, substantiallyas set forth.

3. In a pneumatic straw-stacker, the combination with the separator, thewinnowing mechanism, and the uptake-duct of the fan, the deflector forguiding the chaff and dust from the winnowing mechanism to thefanchamber, the chamber or receptacle below the separator for the straw,having an aperture for the entrance of said straw to the fan-chamberseparate from the entrance to said chamber for the chaff or dust, and acarrier for positively advancing the straw toward the fanchamber,substantially as set forth.

4. In a straw-stackin g mechanism, the combination with the separator,the winnowing mechanism, and a discharge-duct, of a fancasingcommunicating with the dischargeduct and having two inlet-apertures inone of its walls, a deflector or shield arranged to contact with thefan-casing between the two inlet-apertures therein to separate thecurrents of air from the winnowing mechanism from the straw deliveredfrom the separator, and a fan arranged within the fan-casing,substantially as set forth.

5. In a straw-stacking mechanism, the combination with a separator, awinnowing mechanism, and a discharge-duct, of a fan-casing communicatingwith the discharge-duct and having two independent inlet-apertures, adeflector adapted to guide chaff and dust from the winnowing mechanismto one of said inlet-apertures in the fan-casing and to gu-ide strawfrom the separator to the other of said inlet-apertures,and a fanarranged within said fan-casing, substantially as set forth.

6. In a straw-stackin g mechanism, the combination with a separator, awinnowing mechanism, and a discharge-duct, of a fan-casing communicatingwith said duct and having two independent inlet-apertures, a deliectoror shield arranged in the path of the air-currents from the winnowingmechanism and curved to extend concentric with one of theinlet-apertures in the fan-casing, and Aat one side of the otherinlet-aperture, and a fan arranged within the fan-casing, substantiallyuas sot forth.

7. In astraw-stacking mechanism, the combination with the separator, thewinnowing devices, the main casin g inclosing said parts,

IIO

and the discharge-duct, of a fan-casing communicating with said duct andhaving two independent inlet-apertures in one of its sidewalls,supportingbars, g5, arranged at the side of the fan-casing, adeflector or shield connected to said bars and adapted to guide thestraw from the separator to one of the inletapertures in the fan-casingand the chaff and dust from the winnow'ing devices to the other ofv saidinlet-apertures, a door at the rear of the main casing, and a fanarranged within the fan-casing', substantially as set forth.

8. In a pneumatic straw-stacker the combination with the delivery-ducthaving telescoping sections M M', of the guide-bar O, the adjustabletruss-frame for supporting said guide-bar, the guide-bar W secured tothe outer section and the antifriction-roller bearings interposedbetween the said guide-bars O and W, substantially as set forth.

9. In a pneumatic straw-stacker, the combination with a delivery spoutor duct having two telescoping sections, of two overlapping guide-bars,each connected with one of said duct-sections, antifriction-rollersmounted on each of said guide-bars and contacting with the other of saidbars, and means for positively moving one of said duct-sections and itsattached guide-bar longitudinally of the other section and itsguide-bal', substantially as set forth.

10. In a pneumatic straw-stacker, the combination with a delivery spoutor duct having two telescoping sections, of an angle -iron guide-barhaving its inner end supported on Yone of said duct-sections, and itsforward end projecting beyond the end of said duct-section, anotherguide-bar secured to and eX- tending longitudinally of the otherduct-'section, an antifriction-roller supported from the forward end ofthe rst said guide-bar and engaging with the last said guide-bar toassist in supporting the duct section connected therewith,antifriction-rollers carried by the last said duct-section and arrangedto run on the first said guide-bar, and means for moving the last saidduct-section longitudinally of the rst said duct-section, substantiallyas set forth.

1l. In a pneumatic straw-stacker, the combination with a delivery ductor spout having two telescoping sections, M, M', an angle-iron guide-bararranged at one side of and projecting beyond the end of theduct-section M, devices on said guide-bar for loosely supporting theduct-section M', antifriction rollers or wheels mounted on the last saidduct-section, M', and arranged to run along the aforesaid guide-bar, andpower devices supported on the inner duct-section, M, and adapted topositively move the outerduct-section, M', longitudinally, substantiallyas set forth.

l2. In a pneumatic straw-stacker, the cornbination of the outerduct-section, M', having an annular flange, z, at its outer end, of therotary mouthpiece fitted about said duct-section, M', and havingguide-wheels bearing against said flange a, and means for positivelymoving said mouthpiece, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

VILLIAM N. SPRINGER.

Witnesses:

HENRY C. ROBERTS, l JOHN B. BARTHoLoMEw.

